Can you briefly explain what PG and VG is?

PG (Propylene Glycol) and VG (Vegetable Glycerin) are the two primary base ingredients used in vaping e-liquids.

PG (Propylene Glycol)
Characteristics: PG is a clear, odourless liquid with a thin consistency.
Effects on the Lungs: PG is generally recognised as safe by the FDA and is commonly used in food, cosmetics, and medical applications. In vaping, it delivers a stronger throat hit similar to smoking and enhances flavour delivery. Some users may experience mild throat irritation when using higher PG concentrations.

VG (Vegetable Glycerin)
Characteristics: VG is thicker in texture and slightly sweet in taste, producing denser vapour clouds.
Effects on the Lungs: VG is also considered safe for consumption and is typically smoother on the throat, making it a preferred option for those who are sensitive to irritation. One trade-off is that VG can slightly mute flavour intensity compared to PG.

Both PG and VG are widely used in e-liquids, and choosing between them largely comes down to personal preference and comfort. When used as intended in e-cigarettes, neither PG nor VG has been shown to cause harm to the lungs. Individual reactions can differ, so selecting the ratio that best suits your needs will help ensure a more enjoyable vaping experience.